Portable cooling apparatus



y 1933- G. OBRIEN 1,909,866

PORTABLE COOLING APPARATUS Filed Feb. 5, 1932 2 Sheets-Sheet l G267: 0 'Er/Zen,

ATTORNEY 1y of the lower chamber 28 as shown by Figs. 2 and 3, in order to discharge the cooling liquid back into the tank 16 through perforations 38 in the bottom of said rearward projection. In order to enhance the efliciency of the radiator 20 the tubes 32 are equipped with a plurality of horizontally disposed fins 40. b

- The cooling liquid consists preferably of meltage'from the ice within the tank 16, or Watenplaced within said tank, and is pumped to the radiator 20 by suitable means such as a centrifugal pump 42 having its inlet con.- nected to the lower portion of the tank 16 by a pipe 44 and its outlet connected to a discharge pipe 46 communicating with the lower portion of the radiator chamber 28. The pipe '46 is equipped with a valve 48 for regulating the flow of the cooling liquid to the radiator 20. Said pipe 46 is also equipped with a short discharge pipe 50 to which a hose scribed it is apparent that when the cooling water from the tank 16 is pumped upwardly through the radiator 20 and discharged from the perforations 38 itwillnot only cool, but will also wash the air circulated through the passageway 22 by the fan 58. As'the water is discharged from the perforations 38 it falls upon the silencer 62 and then flows down- \wardly over the ice whereby it is recooled preparatory to again being circulated through the radiator 20. The temperature y be 6921 ,fQI,,r Qndulctingihenwaterwpipe;46'witletheyalve48which may be left fromtlie cabinet 2 when it is desired to drain eliminate, or at least greatly reduce the noise the valve 48 of course will be closed while a valve 52 on the pipe 50' will be opened.

The pump 42 is operated by suitable means such as an electric motor 54, which, together with the pump is located in the lower front portion of the cabinet 2, so that access may be readily had thereto for inspection or repairs by opening a door 56 hinged to the front wall 8 of the cabinet.

Air is circulated through the passage 22 by suitable means'such as a fan 58 located in the outlet 26 and driven by suitable means such as an electric motor 6 I In apparatus of this character it is important to reduce the noise of operation to a minimum, especially when the apparatus is psed in a hospital, or sick room, so in order to which would otherwise occur if the water dischar edfrom the radiator were permitted to fall irectly into/the tank 16, I intercept the fallby means of a silencer 62 constructed preferably in the form-of an open mesh screen 64 and arranged at an incline as best shown by Figs. 3 and 4. The lower longitudinal portion of the silencer 62 rests upon t e upper edge of the tank 16, while the upper longi- -tudinal portionof said silencer is hingedly connected to the sides of-a trough 66, so that the silencerlmay be swung upwardly against the fins 40 and thus be out of the way when the tank 16 is being sup(plied with ice.

The trough 66 surroun s the front and side walls of the lower chamber 28 itd catch any condensation from the radiator 20 and conduct 'it into the tank 16. Any other condensation not caught by the trough 16 is collected in a drip pan 68 covering the bottom wall 6 of the cabinet 2 and provided with a valve-controlled drain pipe 70.

With the parts arranged as shown and deopen to its full capacity when it is desired to obtain maximum cooling duringhigh temperatures, or partially closed to reducethe circulation of the water during moderate temperatures of the outer atmosphere.

From the foregoing description it is apparent that I have provided an efficient apparatus which is well adapted for the purpose intended, and while I have shown one form of the invention I reserve all rights to such other forms and modifications thereof as properly fall within the spirit and scope of the invention as claimed. I 7

Having thus described my invention, what I claim and desire to secure by Letters Patent, is: I

1. An apparatus of the character described comprising a cabinet having an air passage extending therethrough, means for circulating air through said passage, a radiator arranged within said assage and having a, chamber with a multiplicity of perforations adapted to discharge a cooling liquid upon the air, means within the cabinet for cooling said liquid, and means for circulating the liquid from said cooling means through said radiator. 1 2. An apparatus-of the character described comprising a cabinet having an a'irpassage extending therethrough, radiator tubes ar-- ranged within said passage, lower and upper radiator chambers connected to said tubes) a perforated partition within the lower chamber, perforations in the upper chamber through which a cooling liquid is discharged,

-means for receiving and cooling said liquid,

to each other within said passage, lower and upper radiator chambers connected to said tubes, said upper chamber having a projection with perforations in its lower portion for the discharge of a cooling liquid, a tank within the cabinet "for holding 1ce and receivin the liquid discharged from the radiator, an a pump connected to said tank and the lower radiator chamber, for pumping the cooled liquid of the former to the latter.

- i In testimony whereof I aflix my signature.

GLEN OBRIEN. 

